Not sure how seriously to take this thread or not; but I'll share my own experience either way, as it might serve as useful advice for anyone else reading either now or in the future:
Back in early 2013 I started a new job which was effectively a 'step-up' within the same field I'd been working before, but full time hours and in a new workplace. It seemed like a dream move for me at the time. It was very local and I had reason to think this job would be the 'making of me' so to speak...
As it turned out, I very quickly started to feel extreme uncomfortable at this place and with the people I was associated with. I was in a building with hundreds of other people, yet I had never felt so frightened and alone. I was 27 at the time and people (friends and family) kept telling me it was just a case of settling in and that it would be fine after a few weeks. But it wasn't. I became ill through the worry and stress of it all and had about 2 weeks off followed by a phased return, which didn't go down at all well with the management! I really toyed with the idea of quitting, as I didn't "need" the money as such, but I was only too aware of the implications of quitting a job without a new one to go into. Anyway, I stayed for about 18 totally miserable months and by the end of it I was taking very high doses of Diazepam just to get me through the days. It was horrendous and I didn't want to be alive.
I had some relief once I'd finally left in late 2014, and actually returned to where I'd been working before and I was once again very happy in my old role. But shortly after my overall health took a massive decline and I had to stop work altogether as a result.
Whilst I can't put all my current problems down to that job that made me so unhappy, I am convinced that the stress and trauma it caused had a lasting effect that certainly contributed to my current hopeless state of health.
Therefore, my advice, learnt the very hard way, is that if you ever find yourself in a similar situation to me where you literally DREAD waking up and going to work and feel completely isolated and vulnerable whilst you're there...just leave if you can possibly afford to do so.!Your long-term health is more important than gaps in CVs and worrying over stuff like that.